From 03261851a10dd2d6900a0a00a7515a0a46fb5d76 Mon Sep 17 00:00:00 2001 From: Ranjith Kumaran Date: Fri, 17 Mar 2000 22:48:54 +0000 Subject: 20000317 sourceware import --- libgloss/syscall.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libgloss/syscall.h (limited to 'libgloss/syscall.h') diff --git a/libgloss/syscall.h b/libgloss/syscall.h new file mode 100644 index 000000000..da785625a --- /dev/null +++ b/libgloss/syscall.h @@ -0,0 +1,47 @@ +/* General use syscall.h file. + The more ports that use this file, the simpler sim/common/nltvals.def + remains. */ + +#ifndef LIBGLOSS_SYSCALL_H +#define LIBGLOSS_SYSCALL_H + +/* Note: This file may be included by assembler source. */ + +/* These should be as small as possible to allow a port to use a trap type + instruction, which the system call # as the trap (the d10v for instance + supports traps 0..31). An alternative would be to define one trap for doing + system calls, and put the system call number in a register that is not used + for the normal calling sequence (so that you don't have to shift down the + arguments to add the system call number). Obviously, if these system call + numbers are ever changed, all of the simulators and potentially user code + will need to be updated. */ + +/* There is no current need for the following: SYS_execv, SYS_creat, SYS_wait, + etc. etc. Don't add them. */ + +/* These are required by the ANSI C part of newlib (excluding system() of + course). */ +#define SYS_exit 1 +#define SYS_open 2 +#define SYS_close 3 +#define SYS_read 4 +#define SYS_write 5 +#define SYS_lseek 6 +#define SYS_unlink 7 +#define SYS_getpid 8 +#define SYS_kill 9 +#define SYS_fstat 10 +/*#define SYS_sbrk 11 - not currently a system call, but reserved. */ + +/* ARGV support. */ +#define SYS_argvlen 12 +#define SYS_argv 13 + +/* These are extras added for one reason or another. */ +#define SYS_chdir 14 +#define SYS_stat 15 +#define SYS_chmod 16 +#define SYS_utime 17 +#define SYS_time 18 + +#endif -- cgit v1.2.3